Green synthesis of gold nanoparticles using Citrus maxima peel extract and their catalytic/antibacterial activities.
IET Nanobiotechnol
; 11(5): 523-530, 2017 Aug.
Article
en En
| MEDLINE
| ID: mdl-28745284
ABSTRACT
The peel of Citrus maxima (C. maxima) is the primary byproducts during the process of fruit or juice in food industries, and it was always considered as biomass waste for further treatments. In this study, the authors reported a simple and eco-friendly method to synthesise gold nanoparticles (AuNPs) using C. maxima peel extract as reducing and capping agents. The synthesised AuNPs were characterised by UV-visible spectrum, X-ray diffraction (XRD), transmission electron microscope (TEM) and Fourier-transform infrared spectroscopy (FTIR). The UV-visible spectrum of the AuNPs colloid showed a characteristic peak at 540â
nm. The peaks of XRD analysis at (2θ) 38.30°, 44.28°, 64.62°, 77.57° and 81.75° were assigned to (111), (200), (220), (311) and (222) planes of the face-centered cubic (fcc) lattice of gold. The TEM images showed that AuNPs were nearly spherical in shape with the size of 8-25â
nm. The FTIR spectrum revealed that some bioactive compounds capped the surface of synthesised AuNPs. The biosynthesised AuNPs performed strong catalytic activity in degradation of 4-nitrophenol to 4-aminophenol and good antibacterial activity against both gram negative (Escherichia coli) and gram positive (Staphylococcus aureus) bacterium. The synthesis procedure was proved simple, cost effective and environment friendly.
Texto completo:
1
Bases de datos:
MEDLINE
Asunto principal:
Extractos Vegetales
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Citrus
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Nanopartículas del Metal
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Tecnología Química Verde
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Oro
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Antibacterianos
Idioma:
En
Revista:
IET Nanobiotechnol
Año:
2017
Tipo del documento:
Article